package lianxi11;

import static lianxi11.Util.delay;

public class ExchangeService {

	public enum Money{
		USD(1.0),
		EUR(1.35387),
		GBP(1.69715),
		CAD(.92106),
		MXN(.07683);
		
		private final double rate ;
		
		Money(double rate){
			this.rate=rate;
		}
	}
	
	public static double getRate(Money source, Money destination ){
		return  getRateWithDelay(source, destination);
	}
	
	private static double getRateWithDelay(Money source,Money destination){
		delay();
		return destination.rate / source.rate;
	}
	
}
